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Revolving Live and Dead Centers | Accu-fix Precision Tools
Frequently Asked Questions
1. What is a dead center?
A dead center is a tool used in turning operations to support the One end of the workpiece is clamped. It does not rotate and does not move with the workpiece. The workpiece turns around it, and the center supports it to prevent deflection or bending..
2. What is a revolving (live) center?
A revolving live center is a center with bearings so the tip will rotate together with the workpiece. It is mounted in the tailstock of a lathe and gives support and even rotation during high-speed operations.
3:- What materials are live and dead centers made from?
Dead and live centers are constructed using hard steel or HSS for longevity and wear and damage resistance. Tips are hardened through tempering for extended life up to 60–64 HRC. Carbide tips can be used in some models to ensure high precision and durability.
4. When should you use a dead center?
A dead center is employed in slow and precise work where a small motion at the point of contact is desired. It does not rotate, so it creates friction, and lubrication must be applied. It is frequently employed on the hand lathe's headstock and gives firm support for grinding, fine turning, and precise alignment but not for high-speed machining.
5 :- When is a revolving (live) center used?
A live center is utilized in the tailstock of lathes, particularly CNC machines, to assist in supporting turning workpieces when rotating at high speed. It contains inner bearings that allow the tip to rotate with the part, reducing wear, heat, and friction. It assists in giving greater support, precision, and smooth operation.
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